(Used) 2009 Allison (AT), TRANSMISSION ECM- ECM Model: A59, Serial Number: BK1869A962170166, Part Number: 29551869, Model: 2500PTS, Serial Number: 6310943840, Type Plug: Rectangular, Pin Plug: 80 Pins, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY, ELKTON, MD 21921